New in Symfony 4.3: Improved Financial Constraints

The International Bank Account Number (IBAN) is an internationally agreed
system of identifying bank accounts across national borders. The Bank Identifier
Code (BIC) is a unique identification code for both financial and non-financial
institutions defined in the ISO 9362 standard.

Although both codes are independent, they can be checked in combination to
validate that both belong at least to the same country. In Symfony 4.3 we
improved the Bic constraint to allow validating BIC and IBAN codes together.

Universal Air Travel Plan (UATP) is the airline owned payment network
accepted by thousands of merchants for air, rail, hotel and travel agency
payments. In Symfony 4.3 we improved the CardScheme constraint to add
support for a new UATP scheme: